반응 #510188
ord-0f85d91f9a5847e3b3bc309353d71277
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시약
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후처리
- 1세척washed sequentially with water (20 mL) and saturated brine (20 mL)
- 2건조The organic layer was dried over MgSO4
- 3여과filtered
- 4기타evaporated
- 5기타to afford crude product
- 6기타The crude product was purified by flash silica chromatography, elution gradient 5 to 10% MeOH with ammonia in DCM
- 7기타Pure fractions were evaporated to dryness
실험 절차
(S)-1-(4-Chlorophenyl)-N3,N3-diethylpropane-1,3-diamine (Intermediate 60) (119 mg, 0.49 mmol) was added in one portion to 4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxylic acid (Intermediate 1) (179 mg, 0.49 mmol) and DIPEA (0.259 mL, 1.48 mmol) in DMA (5 mL). O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (207 mg, 0.54 mmol) was added and the resulting solution was stirred at 50° C. for 2 hours. The reaction mixture was diluted with EtOAc (25 mL), and washed sequentially with water (20 mL) and saturated brine (20 mL). The organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 5 to 10% MeOH with ammonia in DCM. Pure fractions were evaporated to dryness to afford (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-(diethylamino)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (189 mg, 65.5%) as a colourless gum. (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-(diethylamino)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (189 mg, 0.33 mmol) was dissolved in DCM (5.00 mL) and TFA (1 mL) added. The reaction was stirred at ambient temperature for 2 hours. The crude product was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 7N ammonia/MeOH and pure fractions were evaporated to dryness to afford crude product which was triturated with diethyl ether to afford (S)-4-amino-N-(1-(4-chlorophenyl)-3-(diethylamino)propyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (70.0 mg, 29.3%) as a white foam.